Nether
The Nether, also known as Hell or the Slip, is a dimension filled with lava. It allows the player to travel long distances rather quickly, as every block in the Nether maps to 8 blocks in the overworld.
Biomes
The Nether can only generate a single biome in this version, that being the Hell biome, later renamed to the Nether Wastes in modern versions.
Generation
TODO!
Population
Please see the nether section on the population page.